15 By your power you saved your people,the descendants of Jacob and of Joseph.
16 When the waters saw you, O God, they were afraid,and the depths of the sea trembled.
17 The clouds poured down rain;thunder crashed from the sky,and lightning flashed in all directions.
18 The crash of your thunder rolled out,and flashes of lightning lit up the world;the earth trembled and shook.
19 You walked through the waves;you crossed the deep sea,but your footprints could not be seen.
20 You led your people like a shepherd,with Moses and Aaron in charge.